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ada3c44cd1
This is especially problematic for file descriptors referring to tty/pty devices since it can cause the SSH connection to the VM to die. The ambition here is reduce the number of "lost connection/no output" failures at the cost of limiting the coverage of chflags(2).
64 lines
1.2 KiB
Go
64 lines
1.2 KiB
Go
package openbsd_test
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import (
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"fmt"
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"strings"
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"testing"
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"github.com/google/syzkaller/prog"
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_ "github.com/google/syzkaller/sys/openbsd/gen"
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)
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func TestSanitizeMknodCall(t *testing.T) {
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target, err := prog.GetTarget("openbsd", "amd64")
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if err != nil {
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t.Fatal(err)
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}
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tests := []struct {
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input string
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output string
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}{
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{
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`chflagsat(0x0, 0x0, 0x60004, 0x0)`,
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`chflagsat(0x0, 0x0, 0x0, 0x0)`,
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},
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{
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`fchflags(0x0, 0x60004)`,
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`fchflags(0x0, 0x0)`,
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},
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{
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// major=22, minor=232
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`mknodat(0x0, 0x0, 0x0, 0x16e8)`,
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`mknodat(0x0, 0x0, 0x0, 0x202)`,
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},
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{
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// major=22, minor=232
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`mknod(0x0, 0x0, 0x16e8)`,
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`mknod(0x0, 0x0, 0x202)`,
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},
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{
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// major=22, minor=0
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`mknod(0x0, 0x0, 0x1600)`,
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`mknod(0x0, 0x0, 0x1600)`,
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},
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{
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// major=4, minor=2
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`mknod(0x0, 0x0, 0x0402)`,
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`mknod(0x0, 0x0, 0x202)`,
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},
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}
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for i, test := range tests {
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t.Run(fmt.Sprint(i), func(t *testing.T) {
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p, err := target.Deserialize([]byte(test.input), prog.Strict)
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if err != nil {
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t.Fatal(err)
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}
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got := strings.TrimSpace(string(p.Serialize()))
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want := strings.TrimSpace(test.output)
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if got != want {
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t.Fatalf("input:\n%v\ngot:\n%v\nwant:\n%s", test.input, got, want)
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}
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})
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}
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}
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